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<FONT color="green">001</FONT>    /*<a name="line.1"></a>
<FONT color="green">002</FONT>     * Copyright 2007-2008 Michele Mostarda ( michele.mostarda@gmail.com ).<a name="line.2"></a>
<FONT color="green">003</FONT>     * All Rights Reserved.<a name="line.3"></a>
<FONT color="green">004</FONT>     *<a name="line.4"></a>
<FONT color="green">005</FONT>     * Licensed under the Apache License, Version 2.0 (the 'License');<a name="line.5"></a>
<FONT color="green">006</FONT>     * you may not use this file except in compliance with the License.<a name="line.6"></a>
<FONT color="green">007</FONT>     * You may obtain a copy of the License at<a name="line.7"></a>
<FONT color="green">008</FONT>     *<a name="line.8"></a>
<FONT color="green">009</FONT>     *     http://www.apache.org/licenses/LICENSE-2.0<a name="line.9"></a>
<FONT color="green">010</FONT>     *<a name="line.10"></a>
<FONT color="green">011</FONT>     * Unless required by applicable law or agreed to in writing, software<a name="line.11"></a>
<FONT color="green">012</FONT>     * distributed under the License is distributed on an 'AS IS' BASIS,<a name="line.12"></a>
<FONT color="green">013</FONT>     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.13"></a>
<FONT color="green">014</FONT>     * See the License for the specific language governing permissions and<a name="line.14"></a>
<FONT color="green">015</FONT>     * limitations under the License.<a name="line.15"></a>
<FONT color="green">016</FONT>     */<a name="line.16"></a>
<FONT color="green">017</FONT>    <a name="line.17"></a>
<FONT color="green">018</FONT>    <a name="line.18"></a>
<FONT color="green">019</FONT>    package com.asemantics.rdfcoder.model;<a name="line.19"></a>
<FONT color="green">020</FONT>    <a name="line.20"></a>
<FONT color="green">021</FONT>    import com.asemantics.rdfcoder.model.java.JavaCodeHandler;<a name="line.21"></a>
<FONT color="green">022</FONT>    <a name="line.22"></a>
<FONT color="green">023</FONT>    import java.io.Serializable;<a name="line.23"></a>
<FONT color="green">024</FONT>    import java.util.ArrayList;<a name="line.24"></a>
<FONT color="green">025</FONT>    import java.util.Arrays;<a name="line.25"></a>
<FONT color="green">026</FONT>    import java.util.Collections;<a name="line.26"></a>
<FONT color="green">027</FONT>    import java.util.List;<a name="line.27"></a>
<FONT color="green">028</FONT>    import java.util.ListIterator;<a name="line.28"></a>
<FONT color="green">029</FONT>    <a name="line.29"></a>
<FONT color="green">030</FONT>    /**<a name="line.30"></a>
<FONT color="green">031</FONT>     * Defines the unique context of a resource.<a name="line.31"></a>
<FONT color="green">032</FONT>     * Can be used to build a resource identifier.<a name="line.32"></a>
<FONT color="green">033</FONT>     *<a name="line.33"></a>
<FONT color="green">034</FONT>     * @version $Id: Identifier.html 202 2010-11-02 09:58:12Z michele.mostarda $<a name="line.34"></a>
<FONT color="green">035</FONT>     * @see IdentifierBuilder<a name="line.35"></a>
<FONT color="green">036</FONT>     */<a name="line.36"></a>
<FONT color="green">037</FONT>    public class Identifier implements Serializable {<a name="line.37"></a>
<FONT color="green">038</FONT>    <a name="line.38"></a>
<FONT color="green">039</FONT>        /**<a name="line.39"></a>
<FONT color="green">040</FONT>         * The qualifier separator.<a name="line.40"></a>
<FONT color="green">041</FONT>         */<a name="line.41"></a>
<FONT color="green">042</FONT>        public static final String QUALIFIER_SEPARATOR = ":";<a name="line.42"></a>
<FONT color="green">043</FONT>    <a name="line.43"></a>
<FONT color="green">044</FONT>        /**<a name="line.44"></a>
<FONT color="green">045</FONT>         * The prefix of the identifier.<a name="line.45"></a>
<FONT color="green">046</FONT>         */<a name="line.46"></a>
<FONT color="green">047</FONT>        protected String prefix;<a name="line.47"></a>
<FONT color="green">048</FONT>    <a name="line.48"></a>
<FONT color="green">049</FONT>        /**<a name="line.49"></a>
<FONT color="green">050</FONT>         * The list of ordered fragments composing the identifier.<a name="line.50"></a>
<FONT color="green">051</FONT>         */<a name="line.51"></a>
<FONT color="green">052</FONT>        protected List&lt;IdentifierFragment&gt; fragments;<a name="line.52"></a>
<FONT color="green">053</FONT>    <a name="line.53"></a>
<FONT color="green">054</FONT>        /**<a name="line.54"></a>
<FONT color="green">055</FONT>         * Constructor.<a name="line.55"></a>
<FONT color="green">056</FONT>         *<a name="line.56"></a>
<FONT color="green">057</FONT>         * @param prefix<a name="line.57"></a>
<FONT color="green">058</FONT>         * @param fs<a name="line.58"></a>
<FONT color="green">059</FONT>         */<a name="line.59"></a>
<FONT color="green">060</FONT>        protected Identifier(String prefix, List&lt;IdentifierFragment&gt; fs) {<a name="line.60"></a>
<FONT color="green">061</FONT>            this.prefix = prefix;<a name="line.61"></a>
<FONT color="green">062</FONT>            fragments   = new ArrayList&lt;IdentifierFragment&gt;(fs);<a name="line.62"></a>
<FONT color="green">063</FONT>        }<a name="line.63"></a>
<FONT color="green">064</FONT>    <a name="line.64"></a>
<FONT color="green">065</FONT>        /**<a name="line.65"></a>
<FONT color="green">066</FONT>         * Constructor.<a name="line.66"></a>
<FONT color="green">067</FONT>         *<a name="line.67"></a>
<FONT color="green">068</FONT>         * @param prefix<a name="line.68"></a>
<FONT color="green">069</FONT>         * @param fs<a name="line.69"></a>
<FONT color="green">070</FONT>         */<a name="line.70"></a>
<FONT color="green">071</FONT>        protected Identifier(String prefix, IdentifierFragment[] fs) {<a name="line.71"></a>
<FONT color="green">072</FONT>            this(prefix, Arrays.asList(fs));<a name="line.72"></a>
<FONT color="green">073</FONT>        }<a name="line.73"></a>
<FONT color="green">074</FONT>    <a name="line.74"></a>
<FONT color="green">075</FONT>        /**<a name="line.75"></a>
<FONT color="green">076</FONT>         * Returns the &lt;code&gt;i-th&lt;/code&gt; fragment.<a name="line.76"></a>
<FONT color="green">077</FONT>         *<a name="line.77"></a>
<FONT color="green">078</FONT>         * @param f<a name="line.78"></a>
<FONT color="green">079</FONT>         * @return the identifier fragment.<a name="line.79"></a>
<FONT color="green">080</FONT>         */<a name="line.80"></a>
<FONT color="green">081</FONT>        public IdentifierFragment getFragment(int f) {<a name="line.81"></a>
<FONT color="green">082</FONT>            return fragments.get(f);<a name="line.82"></a>
<FONT color="green">083</FONT>        }<a name="line.83"></a>
<FONT color="green">084</FONT>    <a name="line.84"></a>
<FONT color="green">085</FONT>        /**<a name="line.85"></a>
<FONT color="green">086</FONT>         * @return the identifier prefix.<a name="line.86"></a>
<FONT color="green">087</FONT>         */<a name="line.87"></a>
<FONT color="green">088</FONT>        public String getPrefix() {<a name="line.88"></a>
<FONT color="green">089</FONT>            return prefix;<a name="line.89"></a>
<FONT color="green">090</FONT>        }<a name="line.90"></a>
<FONT color="green">091</FONT>    <a name="line.91"></a>
<FONT color="green">092</FONT>        /**<a name="line.92"></a>
<FONT color="green">093</FONT>         * @return the identifier as string.<a name="line.93"></a>
<FONT color="green">094</FONT>         */<a name="line.94"></a>
<FONT color="green">095</FONT>        public String getIdentifier() {<a name="line.95"></a>
<FONT color="green">096</FONT>            StringBuilder sb = new StringBuilder();<a name="line.96"></a>
<FONT color="green">097</FONT>            sb.append(prefix);<a name="line.97"></a>
<FONT color="green">098</FONT>            String currentQualifier = null;<a name="line.98"></a>
<FONT color="green">099</FONT>            IdentifierFragment cf;<a name="line.99"></a>
<FONT color="green">100</FONT>            final int lastIndex = fragments.size() - 2;<a name="line.100"></a>
<FONT color="green">101</FONT>            for(int i = 0; i &lt; fragments.size(); i++) {<a name="line.101"></a>
<FONT color="green">102</FONT>                cf = fragments.get(i);<a name="line.102"></a>
<FONT color="green">103</FONT>                if( ! cf.getQualifier().equals(currentQualifier) ) {<a name="line.103"></a>
<FONT color="green">104</FONT>                    currentQualifier = cf.getQualifier();<a name="line.104"></a>
<FONT color="green">105</FONT>                    sb.append(currentQualifier).append(QUALIFIER_SEPARATOR).append(cf.getFragment());<a name="line.105"></a>
<FONT color="green">106</FONT>                } else {<a name="line.106"></a>
<FONT color="green">107</FONT>                    sb.append(cf.getFragment());<a name="line.107"></a>
<FONT color="green">108</FONT>                }<a name="line.108"></a>
<FONT color="green">109</FONT>                if(i &lt;= lastIndex) {<a name="line.109"></a>
<FONT color="green">110</FONT>                    sb.append(JavaCodeHandler.PACKAGE_SEPARATOR);<a name="line.110"></a>
<FONT color="green">111</FONT>                }<a name="line.111"></a>
<FONT color="green">112</FONT>            }<a name="line.112"></a>
<FONT color="green">113</FONT>            return sb.toString();<a name="line.113"></a>
<FONT color="green">114</FONT>        }<a name="line.114"></a>
<FONT color="green">115</FONT>    <a name="line.115"></a>
<FONT color="green">116</FONT>        /**<a name="line.116"></a>
<FONT color="green">117</FONT>         * @return the last fragment of the identifier.<a name="line.117"></a>
<FONT color="green">118</FONT>         */<a name="line.118"></a>
<FONT color="green">119</FONT>        public Identifier getTail() {<a name="line.119"></a>
<FONT color="green">120</FONT>            if(fragments.size() &gt; 0) {<a name="line.120"></a>
<FONT color="green">121</FONT>                return new Identifier( prefix, Arrays.asList( fragments.get( fragments.size() - 1) ) );<a name="line.121"></a>
<FONT color="green">122</FONT>            }<a name="line.122"></a>
<FONT color="green">123</FONT>            return new Identifier( prefix, Collections.&lt;IdentifierFragment&gt;emptyList() );<a name="line.123"></a>
<FONT color="green">124</FONT>        }<a name="line.124"></a>
<FONT color="green">125</FONT>    <a name="line.125"></a>
<FONT color="green">126</FONT>        /**<a name="line.126"></a>
<FONT color="green">127</FONT>         * @return all but the last fragment of the identifier.<a name="line.127"></a>
<FONT color="green">128</FONT>         */<a name="line.128"></a>
<FONT color="green">129</FONT>        public Identifier getParent() {<a name="line.129"></a>
<FONT color="green">130</FONT>            if(fragments.size() &gt; 0) {<a name="line.130"></a>
<FONT color="green">131</FONT>                return new Identifier( prefix, fragments.subList(0, fragments.size() - 1) );<a name="line.131"></a>
<FONT color="green">132</FONT>            }<a name="line.132"></a>
<FONT color="green">133</FONT>            return new Identifier( prefix, Collections.&lt;IdentifierFragment&gt;emptyList() );<a name="line.133"></a>
<FONT color="green">134</FONT>        }<a name="line.134"></a>
<FONT color="green">135</FONT>    <a name="line.135"></a>
<FONT color="green">136</FONT>        /**<a name="line.136"></a>
<FONT color="green">137</FONT>         * @return the first fragment of the identifier.<a name="line.137"></a>
<FONT color="green">138</FONT>         */<a name="line.138"></a>
<FONT color="green">139</FONT>        public Identifier getHead() {<a name="line.139"></a>
<FONT color="green">140</FONT>            return new Identifier( prefix, Arrays.asList( fragments.get(0) ) );<a name="line.140"></a>
<FONT color="green">141</FONT>        }<a name="line.141"></a>
<FONT color="green">142</FONT>    <a name="line.142"></a>
<FONT color="green">143</FONT>        /**<a name="line.143"></a>
<FONT color="green">144</FONT>         * The fragments comprised between &lt;code&gt;from&lt;/code&gt; and &lt;code&gt;to&lt;/code&gt; indexes.<a name="line.144"></a>
<FONT color="green">145</FONT>         *<a name="line.145"></a>
<FONT color="green">146</FONT>         * @param from from fragment, inclusive.<a name="line.146"></a>
<FONT color="green">147</FONT>         * @param to to fragment &lt;b&gt;exclusive&lt;/b&gt;.<a name="line.147"></a>
<FONT color="green">148</FONT>         * @return the sub identifier.<a name="line.148"></a>
<FONT color="green">149</FONT>         */<a name="line.149"></a>
<FONT color="green">150</FONT>        public Identifier getSections(int from, int to) {<a name="line.150"></a>
<FONT color="green">151</FONT>            return new Identifier( prefix, fragments.subList(from, to) );<a name="line.151"></a>
<FONT color="green">152</FONT>        }<a name="line.152"></a>
<FONT color="green">153</FONT>    <a name="line.153"></a>
<FONT color="green">154</FONT>        /**<a name="line.154"></a>
<FONT color="green">155</FONT>         * The fragments comprised between &lt;code&gt;0&lt;/code&gt; and &lt;code&gt;to&lt;/code&gt; indexes.<a name="line.155"></a>
<FONT color="green">156</FONT>         *<a name="line.156"></a>
<FONT color="green">157</FONT>         * @param to to fragment &lt;b&gt;exclusive&lt;/b&gt;.<a name="line.157"></a>
<FONT color="green">158</FONT>         * @return the sub identifier.<a name="line.158"></a>
<FONT color="green">159</FONT>         */<a name="line.159"></a>
<FONT color="green">160</FONT>        public Identifier getSections(int to) {<a name="line.160"></a>
<FONT color="green">161</FONT>            return getSections(0, to);<a name="line.161"></a>
<FONT color="green">162</FONT>        }<a name="line.162"></a>
<FONT color="green">163</FONT>    <a name="line.163"></a>
<FONT color="green">164</FONT>        /**<a name="line.164"></a>
<FONT color="green">165</FONT>         * Returns the first fragment matching the given &lt;i&gt;qualifier&lt;/i&gt;.<a name="line.165"></a>
<FONT color="green">166</FONT>         *<a name="line.166"></a>
<FONT color="green">167</FONT>         * @param qualifier the qualifier to be matched.<a name="line.167"></a>
<FONT color="green">168</FONT>         * @return the fragment found if any, &lt;code&gt;null&lt;/code&gt; otherwise.<a name="line.168"></a>
<FONT color="green">169</FONT>         */<a name="line.169"></a>
<FONT color="green">170</FONT>        public String getFirstFragmentWithQualifier(String qualifier) {<a name="line.170"></a>
<FONT color="green">171</FONT>            for(IdentifierFragment fragment : fragments) {<a name="line.171"></a>
<FONT color="green">172</FONT>                if(fragment.getQualifier().equals(qualifier)) {<a name="line.172"></a>
<FONT color="green">173</FONT>                    return fragment.getFragment();<a name="line.173"></a>
<FONT color="green">174</FONT>                }<a name="line.174"></a>
<FONT color="green">175</FONT>            }<a name="line.175"></a>
<FONT color="green">176</FONT>            return null;<a name="line.176"></a>
<FONT color="green">177</FONT>        }<a name="line.177"></a>
<FONT color="green">178</FONT>    <a name="line.178"></a>
<FONT color="green">179</FONT>        /**<a name="line.179"></a>
<FONT color="green">180</FONT>         * Returns the tail fragment.<a name="line.180"></a>
<FONT color="green">181</FONT>         *<a name="line.181"></a>
<FONT color="green">182</FONT>         * @return the tail fragment.<a name="line.182"></a>
<FONT color="green">183</FONT>         */<a name="line.183"></a>
<FONT color="green">184</FONT>        public IdentifierFragment getTailFragment() {<a name="line.184"></a>
<FONT color="green">185</FONT>            return fragments.get( fragments.size() - 1 );<a name="line.185"></a>
<FONT color="green">186</FONT>        }<a name="line.186"></a>
<FONT color="green">187</FONT>    <a name="line.187"></a>
<FONT color="green">188</FONT>        /**<a name="line.188"></a>
<FONT color="green">189</FONT>         * Returns the last fragment matching the given &lt;i&gt;qualifier&lt;/i&gt;.<a name="line.189"></a>
<FONT color="green">190</FONT>         *<a name="line.190"></a>
<FONT color="green">191</FONT>         * @param qualifier the qualifier to be matched.<a name="line.191"></a>
<FONT color="green">192</FONT>         * @return the fragment found if any, &lt;code&gt;null&lt;/code&gt; otherwise.<a name="line.192"></a>
<FONT color="green">193</FONT>         */<a name="line.193"></a>
<FONT color="green">194</FONT>        public String getLastFragmentWithQualifier(String qualifier) {<a name="line.194"></a>
<FONT color="green">195</FONT>            ListIterator&lt;IdentifierFragment&gt; fragmentsIterator = fragments.listIterator( fragments.size() );<a name="line.195"></a>
<FONT color="green">196</FONT>            IdentifierFragment fragment;<a name="line.196"></a>
<FONT color="green">197</FONT>            while( fragmentsIterator.hasPrevious() ) {<a name="line.197"></a>
<FONT color="green">198</FONT>                fragment = fragmentsIterator.previous();<a name="line.198"></a>
<FONT color="green">199</FONT>                if(fragment.getQualifier().equals(qualifier)) {<a name="line.199"></a>
<FONT color="green">200</FONT>                    return fragment.getFragment();<a name="line.200"></a>
<FONT color="green">201</FONT>                }<a name="line.201"></a>
<FONT color="green">202</FONT>            }<a name="line.202"></a>
<FONT color="green">203</FONT>            return null;<a name="line.203"></a>
<FONT color="green">204</FONT>        }<a name="line.204"></a>
<FONT color="green">205</FONT>    <a name="line.205"></a>
<FONT color="green">206</FONT>        /**<a name="line.206"></a>
<FONT color="green">207</FONT>         * @return The qualifier of the last fragment.<a name="line.207"></a>
<FONT color="green">208</FONT>         */<a name="line.208"></a>
<FONT color="green">209</FONT>        public String getStrongestQualifier() {<a name="line.209"></a>
<FONT color="green">210</FONT>            final int fragmentsSize = fragments.size();<a name="line.210"></a>
<FONT color="green">211</FONT>            if(fragmentsSize == 0) {<a name="line.211"></a>
<FONT color="green">212</FONT>                throw new UnsupportedOperationException("Invalid identifier size to perform this operation.");<a name="line.212"></a>
<FONT color="green">213</FONT>            }<a name="line.213"></a>
<FONT color="green">214</FONT>            return fragments.get(fragmentsSize - 1).getQualifier();<a name="line.214"></a>
<FONT color="green">215</FONT>        }<a name="line.215"></a>
<FONT color="green">216</FONT>    <a name="line.216"></a>
<FONT color="green">217</FONT>        /**<a name="line.217"></a>
<FONT color="green">218</FONT>         * Creates a copy of the current identifier.<a name="line.218"></a>
<FONT color="green">219</FONT>         *<a name="line.219"></a>
<FONT color="green">220</FONT>         * @return a new identifier.<a name="line.220"></a>
<FONT color="green">221</FONT>         */<a name="line.221"></a>
<FONT color="green">222</FONT>        public IdentifierBuilder.IdentifierBuilderInstance copy() {<a name="line.222"></a>
<FONT color="green">223</FONT>            return IdentifierBuilder.create(this);<a name="line.223"></a>
<FONT color="green">224</FONT>        }<a name="line.224"></a>
<FONT color="green">225</FONT>    <a name="line.225"></a>
<FONT color="green">226</FONT>        /**<a name="line.226"></a>
<FONT color="green">227</FONT>         * @return the number of fragments defined in this identifier.<a name="line.227"></a>
<FONT color="green">228</FONT>         */<a name="line.228"></a>
<FONT color="green">229</FONT>        public int size() {<a name="line.229"></a>
<FONT color="green">230</FONT>            return fragments.size();<a name="line.230"></a>
<FONT color="green">231</FONT>        }<a name="line.231"></a>
<FONT color="green">232</FONT>    <a name="line.232"></a>
<FONT color="green">233</FONT>        @Override<a name="line.233"></a>
<FONT color="green">234</FONT>        public boolean equals(Object obj) {<a name="line.234"></a>
<FONT color="green">235</FONT>            if(obj == null) {<a name="line.235"></a>
<FONT color="green">236</FONT>                return false;<a name="line.236"></a>
<FONT color="green">237</FONT>            }<a name="line.237"></a>
<FONT color="green">238</FONT>            if(obj == this) {<a name="line.238"></a>
<FONT color="green">239</FONT>                return true;<a name="line.239"></a>
<FONT color="green">240</FONT>            }<a name="line.240"></a>
<FONT color="green">241</FONT>            if(obj instanceof Identifier) {<a name="line.241"></a>
<FONT color="green">242</FONT>                Identifier other = (Identifier) obj;<a name="line.242"></a>
<FONT color="green">243</FONT>                return<a name="line.243"></a>
<FONT color="green">244</FONT>                        prefix.equals( other.prefix )<a name="line.244"></a>
<FONT color="green">245</FONT>                            &amp;&amp;<a name="line.245"></a>
<FONT color="green">246</FONT>                        fragments.equals( other.fragments );<a name="line.246"></a>
<FONT color="green">247</FONT>            }<a name="line.247"></a>
<FONT color="green">248</FONT>            return false;<a name="line.248"></a>
<FONT color="green">249</FONT>        }<a name="line.249"></a>
<FONT color="green">250</FONT>    <a name="line.250"></a>
<FONT color="green">251</FONT>        @Override<a name="line.251"></a>
<FONT color="green">252</FONT>        public int hashCode() {<a name="line.252"></a>
<FONT color="green">253</FONT>            return prefix.hashCode() * fragments.hashCode() * 2;<a name="line.253"></a>
<FONT color="green">254</FONT>        }<a name="line.254"></a>
<FONT color="green">255</FONT>    <a name="line.255"></a>
<FONT color="green">256</FONT>        @Override<a name="line.256"></a>
<FONT color="green">257</FONT>        public String toString() {<a name="line.257"></a>
<FONT color="green">258</FONT>            return String.format( "%s&lt;%s&gt;", getClass().getSimpleName(), getIdentifier() );<a name="line.258"></a>
<FONT color="green">259</FONT>        }<a name="line.259"></a>
<FONT color="green">260</FONT>    }<a name="line.260"></a>




























































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